Industrial Engineering and Production Management
Travel charts provide

An idea of the flow of materials at various stages
The information for changes required in rearranging material handling equipment
An approximate estimate of the handling which must be done at a particular station
A compact estimate of the handling which must be done between various work sections

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Industrial Engineering and Production Management
Critical Path Net Work helps an engineer

All of these
To concentrate his attention on critical activities
To be cautious for avoiding any delay in the critical activities to avoid delay of the whole project
To divert the resources from noncritical advanced activities to critical activities

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